Universal Rocker Car Dual USB Charger Socket with LED Light for Rocker Switch Panel for iPad iPhone Car Boat USB Power Socket (Green) Input: 12V-30V; Output: 5V 3.1A, works great as a replacement or extra dual USB charger in car switch panel, with blue LED light. Over-heated, over-current, over-charging protection, charging will be automatically stop when battery is full, easy to use and install. Compatible with popular mobile devices USB 2.0, any device including digital cameras, PDAs, mobile phones and USB accessories. As a replacement or extra 12V-30V DC dual USB charger in vehicle. Color: black - material: ABS + electronic components.